Overview
The Goyen K2003 diaphragm kit is a genuine replacement repair component designed for 3/4″ port-sized RCA/CA 20 pulse valve systems. Also referenced as part number M1174B, this kit contains a star-shaped Buna-N diaphragm with an integrated nylon center and stainless steel spring. It restores full operational capability to worn or damaged diaphragm valves used in dust collection, pneumatic control, and industrial filtration systems.
Key Features
- Genuine Goyen/Pentair component — ensures OEM compatibility and reliability
- Buna-N diaphragm material — rated for continuous operation to 180°F
- Integrated spring mechanism — maintains proper valve sealing and response
- Drop-in replacement design — no modifications required for F, T, and DD series valves
- Universal fit — also compatible with Asco 8353 valve assemblies
Technical Specifications
- Goyen Part Number: K2003 (M1174B)
- Valve Port Size: 3/4″
- Diaphragm Material: Buna-N with nylon center
- Spring Material: Stainless steel
- Maximum Temperature: 180°F (82°C)
- Dimensions: 4.5 x 6 x 0.5 inches
- Weight: 0.07 lbs
- Condition: New in original packaging
- Compatible Series: F, T, DD
Typical Applications
The Goyen K2003 kit is essential for maintenance and repair of:
- Dust collection pulse valve systems
- Industrial air filtration equipment
- Pneumatic control circuits
- Baghouse collector pilot valve assemblies
- ISO 4-letter valve solenoid systems
Compatibility & Replacements
Compatible With
- Goyen RCA20M 3/4″ pulse valves (all series)
- Goyen CA20 3/4″ valve assemblies
- Goyen F series diaphragm valves
- Goyen T series diaphragm valves
- Goyen DD series diaphragm valves
- Asco 8353 valve assemblies
Replaces / Drop-In Replacement For
- Goyen M11748 diaphragm assembly
- Goyen M1174 diaphragm component
- Original equipment diaphragm in RCA20M valves
- Worn or damaged K2003 kits in existing installations
Works With
- Goyen pneumatic control systems
- Industrial dust collection networks
- Standard pneumatic 24 VDC solenoid circuits
- Baghouse and cartridge filter equipment
- ISO 4/5 rated air filtration systems






